AL-6XN® Alloy Tube and Pipe Adapters

When you need to transition between different line types (pipe, tube, hose, etc.), AL-6XN offers the corrosion-resistant solution. CSI's AL-6XN pipe adapters allow you to solve the problem of connecting tube to pipe. The flange adapters are used for attaching sanitary ferrules to pipe, and the hose barb adapters can help you easily connect your tube to hose.

For applications that require 3-A sanitary standards or ASME-BPE standards, CSI stocks 304 and 316L Stainless Steel Adapters. We also offer Hastelloy® C-22® Adapters for more corrosion resistance.

Models

Tube x Pipe
- SW31S - butt weld
- 14MPWS - tri-clamp
Hose Barb
Flange
Pipe Thread
- 21MP - tri-clamp x male NPT
- 22MP - tri-clamp x female pipe thread

Length dimensions are consistent with industry standards.

CSI provides a comprehensive line of butt weld and Tri-Clamp components in AL-6XN® in sizes ½ – 4 inch, as well as made-to-order fittings. AL-6XN can be used interchangeably with other alloys such as 254 SMO®, 926, 904L, and duplex (2205 and 2507).

AL-6XN® Alloy Tube and Pipe Adapters

Industries

Processed Foods, High-Acid Foods, Beverages, Home & Personal Care, Pharmaceutical, Biotech, Chemical

View Resources & Literature
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Surface Finish Options

BPE Surface Finish Code	CSI Surface Finish Code	Product Contact Surface (Max Ra)*	Product Contact Surface Finish Treatment (ID)	Non-Product Contact Surface (Max Ra)	Non-Product Contact Surface Finish Treatment (OD)	Dimensions & Tolerances (BPE) or (CSI)
N/A	PU	N/A	Unpolished/Mill	N/A	Unpolished/Mill	CSI
N/A	7	32 µ-inch (0.81 µm)	Mechanical Polish/As Drawn	32 µ-inch (0.81 µm)	Mechanical Polish	CSI
SF1	PL	20 µ-inch (0.51 µm)	Mechanical Polish/As Drawn	32 µ-inch (0.81 µm)	Mechanical Polish	BPE
SF5	PO	20 µ-inch (0.51 µm)	Electropolished	32 µ-inch (0.81 µm)	Mechanical Polish	BPE
SF6	P25	25 µ-inch (0.64 µm)	Electropolished	32 µ-inch (0.81 µm)	Mechanical Polish	BPE

AL-6XN Surface Finish Designations

Pipe Adapters

CSI's pipe-to-tube adapters smoothly transition from schedule pipe sizes to OD tube sizes with either a butt weld or Tri-Clamp tube connection.

Features

Tapered for smooth flow
Squared ends (for single-pass fusion welding) in Schedule 5 and Schedule 10
Standard pipe bevel on Schedule 40
Reducing sizes are also available

AL-6XN Material Part # Drawing Nominal Size
(in)
Tube Wall Thickness
(in)
Pipe OD
(in)
A
(in)
SW31S05PX05T-AL6XN Fig. 1 ½ 0.065 0.840 1.750
SW31S75PX75T-AL6XN Fig. 1 ¾ 0.065 1.050 1.750
SW31S10PX10T-AL6XN Fig. 2 1 0.065 1.315 1.500
SW31S15PX15T-AL6XN Fig. 2 1½ 0.065 1.900 1.500
SW31S20PX20T-AL6XN Fig. 2 2 0.065 2.375 1.500
SW31S25PX25T-AL6XN Fig. 2 2½ 0.065 2.875 1.500
SW31S30PX30T-AL6XN Fig. 2 3 0.065 3.500 2.500
SW31S40PX40T-AL6XN Fig. 2 4 0.083 4.500 2.500

Sizes and item numbers apply to Schedule 10 pipe. Additional sizes and reducing configurations available upon request.

Tri-Clamp Pipe x Tube Adapters14MPWS (Size) P-Material

AL-6XN Material Part #	Drawing	A - Tri-Clamp (in)	Pipe Sch 10 Wall Thickness	Pipe OD (in)	A (in)
14MPWS05P-AL6XN	Fig. 1	½	0.083	0.840	1.750
14MPWS75P-AL6XN	Fig. 1	¾	0.083	1.050	1.750
14MPWS10P-AL6XN	Fig. 2	1	0.109	1.315	1.500
14MPWS15P-AL6XN	Fig. 2	1½	0.109	1.900	1.500
14MPWS20P-AL6XN	Fig. 2	2	0.109	2.375	1.500
14MPWS25P-AL6XN	Fig. 2	2½	0.120	2.875	1.500
14MPWS30P-AL6XN	Fig. 2	3	0.120	3.500	1.500
14MPWS40P-AL6XN	Fig. 2	4	0.120	4.500	1.500

Sizes and item numbers apply to Schedule 10 pipe. Additional sizes and reducing configurations available upon request.

Hose Barb Adapters

Features

CSI's hose barb adapters in butt weld and Tri-Clamp connections allow for easy transitions from sanitary tube to flexible hose. Use the adapter with a hose clamp to secure the hose.

Technical Data

Connections	Butt weld, Tri-Clamp
Materials	316L, AL-6XN alloy, Hastelloy C-22
Finish	32 Ra ID, 32 Ra OD Contact CSI for other finish options.

Butt Weld x Hose Barb Adapters

Size OD (in)	A (in)	B (in)	# of Barbs
⅜	1.75	0.375	5
½	1.75	0.500	5
¾	1.75	0.750	5
1	3.00	1.000	10
1½	3.00	1.500	10
2	3.00	2.000	10
2½	3.00	2.500	10
3	3.00	3.000	10

When placing an order, specify size and material.

Tri-Clamp x Hose Barb Adapters14MPHRXL-Size-Material-Finish

AL-6XN Material Part # (7 Finish)	Size OD (in)	A (in)	B (in)	# of Barbs
14MPHRXL-0.5-AL6XN-7	½	2.25	0.500	5
14MPHRXL-0.75-AL6XN-7	¾	2.25	0.750	5
14MPHRXL-1-AL6XN-7	1	3.50	1.000	10
14MPHRXL-1.5-AL6XN-7	1½	3.50	1.500	10
14MPHRXL-2-AL6XN-7	2	3.50	2.000	10
14MPHRXL-2.5-AL6XN-7	2½	3.50	2.500	10
14MPHRXL-3-AL6XN-7	3	3.00	3.000	10

When placing an order, specify size and material.

Tri-Clamp Hose Barb Adapters14MPHR-Tri-Clamp SizeXHose Barb Size-Material-Finish

Part #	Hose Barb Size	A (in)	B (in)	# of Barbs
14MPHR-0.25	¼ x ¼	1.50	0.312	5
14MPHR-0.5X0.25	½ x ¼	1.50	0.312	5
14MPHR-0.5X0.375	½ x ⅜	1.50	0.405	5
14MPHR-0.5	½ x ½	1.50	0.540	5
14MPHR-0.75X0.25	¾ x ¼	1.50	0.312	5
14MPHR-0.75X0.375	¾ x ⅜	1.50	0.405	5
14MPHR-0.75X0.5	¾ x ½	1.50	0.540	5
14MPHR-0.75	¾ x ¾	1.50	0.780	5
14MPHR-1X0.25	1 x ¼	1.50	0.312	5
14MPHR-1X0.375	1 x ⅜	1.50	0.405	5
14MPHR-1X0.5	1 x ½	1.50	0.540	5
14MPHR-1X0.75	1 x ¾	1.50	0.780	5
14MPHR-1	1 x 1	1.50	1.030	5
14MPHR-1.5X0.25	1½ x ¼	1.50	0.312	5
14MPHR-1.5X0.375	1½ x ⅜	1.50	0.405	5
14MPHR-1.5X0.5	1½ x ½	1.50	0.540	5
14MPHR-1.5X0.75	1½ x ¾	1.50	0.780	5
14MPHR-1.5X1	1½ x 1	1.50	1.030	5
14MPHR-1.5X1.25	1½ x 1¼	1.50	1.280	5
14MPHR-1.5	1½ x 1½	1.69	1.530	5
14MPHR-2X0.25	2 x ¼	1.69	0.312	5
14MPHR-2X0.375	2 x ⅜	1.69	0.405	5
14MPHR-2X0.5	2 x ½	1.69	0.540	5
14MPHR-2X0.75	2 x ¾	1.69	0.780	5
14MPHR-2X1	2 x 1	1.69	1.030	5
14MPHR-2X1.25	2 x 1¼	1.69	1.280	5
14MPHR-2X1.5	2 x 1½	1.69	1.530	5
14MPHR-2	2 x 2	2.31	2.030	8
14MPHR-2.5X0.25	2½ x ¼	1.69	0.312	5
14MPHR-2.5X0.375	2½ x ⅜	1.69	0.405	5
14MPHR-2.5X0.5	2½ x ½	1.69	0.540	5
14MPHR-2.5X0.75	2½ x ¾	1.69	0.780	5
14MPHR-2.5X1	2½ x 1	1.69	1.030	5
14MPHR-2.5X1.25	2½ x 1¼	1.69	1.280	5
14MPHR-2.5X1.5	2½ x 1½	1.69	1.530	5
14MPHR-2.5X2	2½ x 2	2.31	2.030	8
14MPHR-2.5	2½ x 2½	2.34	2.530	8
14MPHR-3X0.25	3 x ¼	2.50	0.312	5
14MPHR-3X0.375	3 x ⅜	2.50	0.405	5
14MPHR-3X0.5	3 x ½	2.50	0.540	5
14MPHR-3X0.75	3 x ¾	2.50	0.780	5
14MPHR-3X1	3 x 1	2.50	1.030	5
14MPHR-3X1.25	3 x 1¼	2.50	1.280	5
14MPHR-3X1.5	3 x 1½	2.50	1.530	5
14MPHR-3X2	3 x 2	2.50	2.030	8
14MPHR-3X2.5	3 x 2½	2.50	2.530	8
14MPHR-3	3 x 3	2.50	3.030	10
14MPHR-4X0.25	4 x ¼	2.50	0.312	5
14MPHR-4X0.375	4 x ⅜	2.50	0.405	5
14MPHR-4X0.5	4 x ½	2.50	0.540	5
14MPHR-4X0.75	4 x ¾	2.50	0.780	5
14MPHR-4X1	4 x 1	2.50	1.030	5
14MPHR-4X1.25	4 x 1¼	2.50	1.280	5
14MPHR-4X1.5	4 x 1½	2.50	1.530	5
14MPHR-4X2	4 x 2	2.50	2.030	8
14MPHR-4X2.5	4 x 2½	2.50	2.530	8
14MPHR-4X3	4 x 3	2.50	3.030	10
14MPHR-4	4 x 4	2.50	4.030	10

When placing an order, specify size and material.

Flange Adapters

Flange adapters from CSI make transitions between sanitary tubing and ANSI flange connections simple and quick. Available in Tri-Clamp and butt weld tube connections.

Technical Data

Connections	ANSI Class 150 flange x Tri-Clamp or butt weld tube
Materials	316L, AL-6XN alloy, or Hastelloy C-22
Finish	32 Ra ID and mill finish OD standard

Flange x Tri-Clamp Adapters38MP-Size-Material

AL-6XN Material Part #	A (in)	B (in)	C (in)	D (in)	# of Bolt Holes
38MP-0.5-AL6XN	½	1.57	3.50	0.44	4
38MP-0.75-AL6XN	¾	1.63	3.88	0.50	4
38MP-1-AL6XN	1	1.69	4.25	0.56	4
38MP-1.5-AL6XN	1½	1.81	5.00	0.68	4
38MP-2-AL6XN	2	1.88	6.00	0.75	4
38MP-2.5-AL6XN	2½	2.00	7.50	0.94	4
38MP-3-AL6XN	3	2.07	7.50	0.94	4
38MP-4-AL6XN	4	2.07	9.00	0.94	8

Reducing configurations are available upon request. Flange dimensions conform to ANSI 16.5, Class 150. Also available in class 300.

Flange x Tri-Clamp Adapter Dimensional Diagram

Flange x Tri-Clamp Adapters, Class 30038MP-Size-Material-300

AL-6XN Material Part #	A (in)	B (in)	C (in)	D (in)	# of Bolt Holes
38MP-0.5-AL6XN-300	½	1.69	3.75	0.50	4
38MP-0.75-AL6XN-300	¾	1.75	4.62	0.56	4
38MP-1-AL6XN-300	1	1.81	4.88	0.62	4
38MP-1.5-AL6XN-300	1½	1.94	6.12	0.75	4
38MP-2-AL6XN-300	2	2.00	6.50	0.81	4
38MP-2.5-AL6XN-300	2½	2.12	7.50	0.94	4
38MP-3-AL6XN-300	3	2.25	8.25	1.06	4
38MP-4-AL6XN-300	4	2.38	10.00	1.19	8

Reducing configurations are available upon request. Flange dimensions conform to ANSI 16.5, Class 300. Also available in class 150.

Flange x Butt Weld Adapters38BW-Size-Material

AL-6XN Material Part #	A (in)	B (in)	C (in)	D (in)	# of Bolt Holes
38BW-0.5-AL6XN	½	2.00	3.50	0.44	4
38BW-0.75-AL6XN	¾	2.06	3.88	0.50	4
38BW-1-AL6XN	1	2.13	4.25	0.56	4
38BW-1.5-AL6XN	1½	2.25	5.00	0.68	4
38BW-2-AL6XN	2	2.31	6.00	0.75	4
38BW-2.5-AL6XN	2½	2.44	7.00	0.87	4
38BW-3-AL6XN	3	2.75	7.50	0.94	4
38BW-4-AL6XN	4	3.00	9.00	0.94	8

Reducing configurations are available upon request. Flange dimensions conform to ANSI 16.5, Class 150. Also available in class 300.

Flange x Butt Weld Adapters, Class 30038BW-Size-Material-300

AL-6XN Material Part #	A (in)	B (in)	C (in)	D (in)	# of Bolt Holes
38BW-0.5-AL6XN-300	½	2.12	3.75	0.50	4
38BW-0.75-AL6XN-300	¾	2.19	4.62	0.56	4
38BW-1-AL6XN-300	1	2.25	4.88	0.62	4
38BW-1.5-AL6XN-300	1½	2.38	6.12	0.75	4
38BW-2-AL6XN-300	2	2.44	6.50	0.81	4
38BW-2.5-AL6XN-300	2½	2.56	7.50	0.94	4
38BW-3-AL6XN-300	3	2.94	8.25	1.06	4
38BW-4-AL6XN-300	4	3.31	10.00	1.19	8

Reducing configurations are available upon request. Flange dimensions conform to ANSI 16.5, Class 300. Also available in class 150.

Blind Flange38BF-Size-Material

AL-6XN Material Part #	Nominal Size (in)	A (in)	B (in)	C (in)	# of BoltHoles
38BF-0.5-AL6XN	½	3.50	1.38	0.38	4
38BF-0.75-AL6XN	¾	3.88	1.69	0.44	4
38BF-1-AL6XN	1	4.25	2.00	0.50	4
38BF-1.5-AL6XN	1½	5.00	2.88	0.62	4
38BF-2-AL6XN	2	6.00	3.62	0.69	4
38BF-2.5-AL6XN	2½	7.00	4.12	0.81	4
38BF-3-AL6XN	3	7.50	5.00	0.88	4
38BF-4-AL6XN	4	9.00	6.19	0.88	8
38BF-6-AL6XN	6	11.00	8.50	0.94	8

Blind flange is a solid flange that is bolted, offered as raised face (RF) or flat face (FF). It is used to secure the end of a piping system or to block off sections of flow. Offered in 316L, AL-6XN, and C-22.

Slip-On Flange38SL-Size-Material

AL-6XN Material Part #	Size OD (in)	A (in)	B (in)	C (in)	D (in)	# of Bolt Holes
38SL-0.5-AL6XN	½	3.50	0.38	0.56	2.38	4
38SL-0.75-AL6XN	¾	3.87	0.38	0.81	2.75	4
38SL-1-AL6XN	1	4.25	0.38	1.06	3.13	4
38SL-1.5-AL6XN	1½	5.00	0.38	1.56	3.88	4
38SL-2-AL6XN	2	6.00	0.44	2.06	4.75	4
38SL-2.5-AL6XN	2½	7.00	0.44	2.56	5.50	4
38SL-3-AL6XN	3	7.50	0.50	3.06	6.00	4
38SL-4-AL6XN	4	9.00	0.50	4.06	7.50	8
38SL-6-AL6XN	6	11.00	0.56	8.06	11.80	8

Tube Weld Neck Flange38W-Size-Material

AL-6XN Material Part #	A (in)	B (in)	C (in)	# of Bolt Holes
38W-0.5-AL6XN	½	0.44	3.50	4
38W-0.75-AL6XN	¾	0.55	3.88	4
38W-1-AL6XN	1	0.56	4.25	4
38W-1.5-AL6XN	1½	0.69	5.00	4
38W-2-AL6XN	2	0.75	6.00	4
38W-2.5-AL6XN	2½	0.87	7.00	4
38W-3-AL6XN	3	0.94	7.50	4
38W-4-AL6XN	4	0.94	9.00	8
38W-6-AL6XN	6	1.00	11.00	8

Flange PackFLANGEPK-Size

316L Material Part #	Flange Size (in)	Bolt Size (in)	#of Bolts	Nut Size (in)	# of Nuts
FLANGEPK-0.5	½	½ x 2	4	½	4
FLANGEPK-0.75	¾	½ x 2¼	4	½	4
FLANGEPK-1	1	½ x 2¼	4	½	4
FLANGEPK-1.5	1½	½ x 2½	4	½	4
FLANGEPK-2	2	5/8-11 x 2½	4	5/8	4
FLANGEPK-2.5	2½	5/8 x 3	4	5/8	4
FLANGEPK-3	3	5/8 x 3	4	5/8	4
FLANGEPK-4	4	5/8 x 3	8	5/8	8
FLANGEPK-6	6	¾ x 3	8	¾	8

Class 150.

Lap Joint Stub End14VB-Size-Material-Finish

AL-6XN Material Part # (7 Finish)	Size OD (in)	A (in)	B (in)
14VB-0.5-AL6XN-7	½	2.000	1.375
14VB-0.75-AL6XN-7	¾	2.000	1.687
14VB-1-AL6XN-7	1	2.000	2.000
14VB-1.5-AL6XN-7	1½	2.000	2.875
14VB-2-AL6XN-7	2	2.500	3.625
14VB-2.5-AL6XN-7	2½	2.500	4.125
14VB-3-AL6XN-7	3	2.500	5.000
14VB-4-AL6XN-7	4	2.500	6.188

38SL Flange is also available

Tri-Clamp x Male NPT Adapter21MP-Size-Material

AL-6XN Material Part # (7 Finish)	Size OD (in)	A (in)
21MP-0.5-AL6XN-7	½	1.77
21MP-0.75-AL6XN-7	¾	1.77
21MP-1-AL6XN-7	1	1.97
21MP-1.5-AL6XN-7	1½	1.97
21MP-2-AL6XN-7	2	2.17
21MP-2.5-AL6XN-7	2½	2.36
21MP-3-AL6XN-7	3	2.76
21MP-4-AL6XN-7	4	2.95

Fractional:

Tri-Clamp x Male NPT Adapter 21MP-Size-Material

Tri-Clamp x Female Pipe Thread Adapter22MP-Size-Material

AL-6XN Material Part # (7 Finish)	Size OD (in)	A (in)
22MP-0.5-AL6XN-7	½	1.30
22MP-0.75-AL6XN-7	¾	1.30
22MP-1-AL6XN-7	1	0.75
22MP-1.5-AL6XN-7	1½	1.54
22MP-2-AL6XN-7	2	1.57
22MP-2.5-AL6XN-7	2½	1.97
22MP-3-AL6XN-7	3	2.05
22MP-4-AL6XN-7	4	2.13

More Adapters

For adapters that meet 3-A sanitary or BPE standards, visit the Adapters for Food, Dairy, & Beverage page. Need a more corrosion-resistant adapter? Check out the Hastelloy C-22 Adapters page for additional material options.

Still don't see what you need? Call CSI for configurations not listed or for custom fabrications.

AL-6XN® Alloy Tube and Pipe Adapters

Models

Industries

Surface Finish Options

Pipe Adapters

Features

Tri-Clamp Pipe x Tube Adapters14MPWS (Size) P-Material

Hose Barb Adapters

Features

Technical Data

Butt Weld x Hose Barb Adapters

Tri-Clamp x Hose Barb Adapters14MPHRXL-Size-Material-Finish

Tri-Clamp Hose Barb Adapters14MPHR-Tri-Clamp SizeXHose Barb Size-Material-Finish

Flange Adapters

Technical Data

Flange x Tri-Clamp Adapters38MP-Size-Material

Flange x Tri-Clamp Adapters, Class 30038MP-Size-Material-300

Flange x Butt Weld Adapters38BW-Size-Material

Flange x Butt Weld Adapters, Class 30038BW-Size-Material-300

Blind Flange38BF-Size-Material

Slip-On Flange38SL-Size-Material

Tube Weld Neck Flange38W-Size-Material

Flange PackFLANGEPK-Size

Lap Joint Stub End14VB-Size-Material-Finish

Tri-Clamp x Male NPT Adapter21MP-Size-Material

Tri-Clamp x Female Pipe Thread Adapter22MP-Size-Material

More Adapters

Product Resources

AL-6XN® Alloy Tube and Pipe Adapters (CSI)

Literature

Blog Posts

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AL-6XN Material Part #	Drawing	Nominal Size (in)	Tube Wall Thickness (in)	Pipe OD (in)	A (in)
SW31S05PX05T-AL6XN	Fig. 1	½	0.065	0.840	1.750
SW31S75PX75T-AL6XN	Fig. 1	¾	0.065	1.050	1.750
SW31S10PX10T-AL6XN	Fig. 2	1	0.065	1.315	1.500
SW31S15PX15T-AL6XN	Fig. 2	1½	0.065	1.900	1.500
SW31S20PX20T-AL6XN	Fig. 2	2	0.065	2.375	1.500
SW31S25PX25T-AL6XN	Fig. 2	2½	0.065	2.875	1.500
SW31S30PX30T-AL6XN	Fig. 2	3	0.065	3.500	2.500
SW31S40PX40T-AL6XN	Fig. 2	4	0.083	4.500	2.500